1. Isomorphous Substitution in Zeolitic Frameworks Procedures and Characterization
2. We include protons in this category for the sake of argument. It is of course possible to view protonation, deprotonation, alkylation etc. of anionic sites in the zeolite lattice as coordinative interactions of a trivalent framework ion.
3. An NMR study of the reaction of water with AlPO4-5
4. Study of the state of aluminium in zeolite-β